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Finding the Fourth Proportional to 60,828.80, 91,253.28 and 21,375.68

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Solution

The fourth proportional to 60,828.80, 91,253.28 and 21,375.68 is: 32,067.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,828.80 : 91,253.28 = 21,375.68 : x
  2. Step 2: Convert to fraction form
    60,828.80/91,253.28 = 21,375.68/x
  3. Step 3: Cross multiply
    60,828.80x = 91,253.28 × 21,375.68
  4. Step 4: Simplify right side
    60,828.80x = 1,950,600,912.23
  5. Step 5: Solve for x
    x = 1,950,600,912.23/60,828.80
  6. Step 6: Final answer
    x = 32,067.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.